What role does the substrate play in cannabis cultivation?
The substrate is the medium in which roots develop, and its choice directly influences nutrient absorption, growth rate, and the overall health of the plant. A suitable substrate should provide a balance of aeration, water retention, and drainage, adapting to the type of growing (indoor, outdoor, hydroponic, organic, etc.) and the grower's style.
What types of substrates can you find at Alchimia?
At Alchimia, we offer a wide range of substrates, both ready-to-use and materials for creating custom mixes:
- Soil for cannabis: pre-mixed organic substrates from brands such as Biobizz, Canna Terra, or Top Crop, with fertilization for several weeks, ideal for growing in pots or directly in the mother soil.
- Coco coir: an aerated and clean alternative to soil. It offers complete nutrient control, ideal for automatic irrigation systems or growing in pure coco coir. Available in bags, bricks, or slabs.
- Rock wool: Widely used in hydroponics due to its high water retention capacity and sterile structure. Ideal for cuttings, seedbeds, or NFT and recirculating systems.
- Perlite and vermiculite: Lightweight materials that improve drainage and water retention. Widely used for aerating soil or coco coir mixes, or for seed propagation.
- Arlita (expanded clay balls): excellent for drainage, hydroponics or as a base in pots and DWC systems.
- Absorbent polymers: They retain large amounts of water, releasing it gradually. Useful for outdoor crops, dry areas, or as a drought prevention measure.
How to choose the right substrate?
It all depends on your growing system, the control you want, and your level of experience:
- If you're looking for easy, hassle-free results, choose an enriched soil.
- If you prefer complete control over nutrition, opt for coconut or rock wool.
- If you want to customize your mix, add perlite, vermiculite, or clay to optimize drainage and retention.
Whatever your choice, a good substrate is the basis for a healthy plant and a quality harvest.
